.banner{
    height: 400px;
}
.banner1{
    background: url("../images/banner.jpg") center center no-repeat;
    background-size: cover;
}
.banner2{
    background: url("../images/banner2.jpg") center center no-repeat;
    background-size: cover;
}
.banner3{
    background: url("../images/banner3.jpg") center center no-repeat;
    background-size: cover;
}
.lunbo{
    background: url("../images/banner4.jpg");
}
.body{
    background: #ffffff;
    width:1369px;
    height: 1725px;
}
.list h2{
    margin:45px 0 0 18px;
}
.list p{
    margin:14px 0 0 18px;

}
.col-md-3 h6{
    margin-top: 24px;
}
.col-md-3 p{
    margin: 0 2px 0 2px;
    color: #347ab6;
}
.card{
    margin:20px 0 20px 0;
}
@media(width: 600px) {
    .banner{
        height: 300px;
    }
    .banner1{
        background: url("../images/banner.jpg")center center no-repeat;
        background-size: cover;
    }
    .banner2{
        background: url("../images/banner2.jpg")center center no-repeat;
        background-size: cover;
    }
    .banner3{
        background: url("../images/banner3.jpg")center center no-repeat;
        background-size: cover;
    }

}
